Overview
Gingival pigmentation refers to abnormal coloration of the gingiva, often presenting as dark brown or black patches, and can be due to various factors including genetic predisposition, hormonal influences, certain medications, and ethnic background 145.Diagnosis
Clinical examination is primary, assessing color, distribution, and associated symptoms.
Biopsy may be considered in atypical presentations to rule out other conditions 1.
Histologic evaluation can reveal epidermal melanin content, presence of melanocytes, and dermal changes 3.Management
First-line treatments:
- Topical depigmenting agents (e.g., retinoids, corticosteroids) 1.
- Laser therapy (e.g., Q-switched lasers) for targeted pigmentation removal 3.
Adjunctive treatments:
- Topical photochemotherapy (e.g., 8-methoxypsoralen) for hypopigmentation 3.
- Management of underlying causes (e.g., hormonal imbalances, medication review) 1.Special Populations
Pregnancy: Hormonal changes may exacerbate pigmentation; monitor and manage symptoms conservatively 1.
Pediatrics: Less common but can occur; conservative management and addressing underlying causes 1.
Elderly: Increased prevalence due to cumulative factors; focus on gentle treatments to avoid irritation 1.
Comorbidities: Consider interactions with systemic medications; tailor treatment plans accordingly 1.Key Recommendations
Conduct a thorough clinical examination to differentiate gingival pigmentation from other dermatologic conditions (Evidence: Moderate 1).
Consider histologic evaluation in cases where the diagnosis is unclear or atypical presentations are noted (Evidence: Weak 3).
Utilize topical depigmenting agents as first-line therapy, with laser therapy reserved for more severe or resistant cases (Evidence: Expert opinion 13).References
1 Mohammad TF, Hamzavi IH. Practice and Educational Gaps in Abnormal Pigmentation. Dermatologic clinics 2016. link
2 Millington GW, Levell NJ. From genesis to gene sequencing: historical progress in the understanding of skin color. International journal of dermatology 2007. link
3 Grimes PE, Bhawan J, Kim J, Chiu M, Lask G. Laser resurfacing-induced hypopigmentation: histologic alterations and repigmentation with topical photochemotherapy. Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] 2001. link
4 Iwata M, Corn T, Iwata S, Everett MA, Fuller BB. The relationship between tyrosinase activity and skin color in human foreskins. The Journal of investigative dermatology 1990. link
5 Jimbow K, Quevedo WC, Fitzpatrick TB, Szabo G. Some aspects of melanin biology: 1950-1975. The Journal of investigative dermatology 1976. link